Admittedly, some of these examples are closed as off-topic/non-constructive on their sites. But I think it is worthwhile to put this kind of question on community-wiki, if for no other reason than just to have a little fun.

Two bits are walking to the ballpark and one bit says to the other bit, "So, how many of us are there?", and the other bit says "One zero", and the first bit says, "I know there's not zero of us! How many are there?", and the other bit says, "ONE ZERO", and the first bit says, "I KNOW THERE'S MORE THAN ZERO OF US HERE! HOW MANY OF US ARE THERE?!", and the other bit says, "I ALREADY TOLD YOU! THERE'S ONE ZERO HERE!!!", and the first bit says, "EITHER YOU'RE CALLING ME A ZERO, OR YOU'RE SAYIN' I AIN'T HERE AT ALL!!", and the other bit says, "Fine. So when we get to the game, who's on first...?".
–
Bob JarvisAug 19 '14 at 2:29

1

After some consideration and feedback from other sites, i've come to the following conclusion: while questions soliciting jokes on other sites have appeared in the past and have been popular, they are generally closed for one main reason... They are not really reflective of the caliber of question that we desire on the network and keepimg these questions open does not really motivate others to uphold the standards of a good question.
–
Paul♦Aug 19 '14 at 5:47

1

This question appears to be off-topic because it is not reflective of the type of questions that we seek to promote on the SE network.
–
Paul♦Aug 19 '14 at 5:50

For those so inclined, humor in Answers which doesn't take away from a substantive problem resolution should be encouraged.
–
hardmathAug 24 '14 at 14:03